Wheel.



W. H. HAYTER.

WHEEL.

APPLICIAIION FILED FEB. 15. 1917.

1,280,999. Putcntvd Oct. 8, 1918.

Z SHEETS -SHEET 1 W. H. HAYTER.

WHEEL.

APPLICATION FILED FEB. I5. I917.

Patented Oct. 8, 1918.

2 SHEETS-SHEET 2.

WILLIAM H. HAYTEB, OF SOUTH NORWOOD, LONDON, ENGLAND.

WHEEL.

Specification of Letters Patent.

Patented Oct. 8, 1918.

Application filed February 15, 1917. Serial No. 148,810.

with wheels provided with pneumatic or rubber or other resilient tires of the type having a core on which the tire takes a di-' rect bearing and having also side flanges for retaining the tire in place' The invention has for its chief object to enable the existing tire to bet'aken ed and replaced quickly and securely by another tire.

According to this invention, one of the said flanges is fixed to or forms part of the core while the other flange is detachably secured to the core by means of camorsnaplevers whereby it can be rapidly removed from the core so as to enable the tire to be at once slipped on to or off the core, as the case may be.

The said flanges are preferably formed by the inturned peripheral portions of disks or plates, but in some cases the inner portions of the disksor plates are removed. so as to leave the flanges in the form of rings. They may also be serrated or corrugated or otherwise suitably roughened so that they may the. more eflectivel grip the tire.

When the whee is to carry a pneumatic tire,'the core is referably provided with a recess, sunk in rom the side carrying the detachable flange, for the accommodation of the tire valve so as to facilitate the removal and replacement of the tire. If the detachable flange is of diskor plate-form the tire- .valve is so placed in the tire tube that it can project through such disk or plate so as to be accessible for pure mg purposes.

The camor snapevers may be inclosed by a detachable cover-plate which serves to In order that this invention may be clearly.

understood and readily carried into efiect, I

of Great will proceed to describe the same with reference to the accompanying drawings in which Figure 1 is a side elevation of the wheel without the cover-plate.

Fig. 2 is substantially a median cross section of the complete wheel.

- Fig. 3 shows the wheel ready to receive a tire, the detachable disk and cover-plate having been removed and the cam-levers having been drawn out straight read for the detachable flange to be threade again when the tire is in place.

Fig. 4: is a side elevation of the preferred form of cam-lever.

Fig. 5 shows the cam-lever mounted on the Wheel and holding the detachable disk in place.

Fig. 6 indicates how the tire valve is disposed in the tire tube relatively to the core and the detachable disk.

Fig. 7 is a section showing a lain-edged tire fitted to the improved whee Figs. 8 and 9 are sections of modified forms of wheel embodying the present improvements.

Referring more particularly to Figs. 1, 2, 3, 5, 6, '7 and 9 of the drawings, pins 0:, which may be tubular, are passed through on to them from the disk b, which is fixed, to the disk 0, which is detachable each pin" having a head a at one end and a slot 11 at the other nd. The cam levers,"d, are mounted on pivots 6 within the slots a their longer arms beingin the form of a handle and preferably provided with a depression 03 to accommodate one of the operators fingers, and their shorter arms being camor eccentrically-shaped, preferably as shown in Figs. 4 and 5. These cam-levers are each provided with a slot (1 to facilitate their movement on their pivots. The slots a in the pins a are of such a depth as to allow the cam-levers to be swung over on their pivots.

The shape of the cam-surface of the lever should be such that it prevents the lever moving from the position shown in Fig. 5

unless an outward pull is applied to the Ian or arm of the lever. To this end, the un or or working surface of the fulcrumed end of the lever is preferably shaped as shown in Fi s. 4 and 5, that is, it is provided with a heel Fig. 3, its rounded extremity df sinks into the pin a, as shown in broken lines in Fig.

a and an inclined toe d. When the lever is drawn out straight, as shown in.

3. In moving the lever down from the position shown in Fig. 3 to that shown in Fig. 5, the heel d and the toe d press against the periphery of the hole in the plate 0 through which passes the pin a, as shown in Fig. 5. The movement of the heel 0Z against the periphery of this hole urges the lever to the left (as seen in Fig. 5) and thereby causes thetoe d to shoot over the plate 0. In order to cause the lever to snap tightly against the plate 0,.it is preferable to so fashion that portion of the surface of the heel that is remote from the toe that it meets-the flat under surface of the lever atthe disk 0 the heel sinks suddenly into the.

pin a and the long arm of the lever snaps with a rapid movement against the disk 0. The lever in this position of rest automatically locks itself in position and presses on the plate 0 on opposlte sides of the fulcrum e. In order to release it an outward pull must be applied to its longer arm.

The disk] I) is fixed to thecore f, in any convenient manner, as, for instance by means of bolts 9.

In regard to the tire valve, this is accommodated in a depression 7 (Fig. 6) in the core whereby it can be easily removed and rojects through a slot 0 (Fig. 1) in the fsk 0. The valve, by being arranged at an angle as shown in Fig. 6, renders inflation of the tire easier and quicker than formerly. If the valve is secured in place in the tube on the inner periphery of the latter, as usual, a wedge-shaped space will be left between its plate 70 and the core or the bead of the tire cover; this space is preferably occupied by a correspondingly shaped washer 72 of sufiicient size to support the portion of the tube immediately around the valve.

age obtained between the edge of the cover plate and the screw-thread by which it is secured in position, provides a very eflective grip on the tire,

Assuming that it is desired to replace a faulty tire by a sound one, the modus 019 emndz' is as follows, reference being had chiefly to Fig. 3. The operator unscrews the cover-plate, pulls the longer arms of the cam-levers out at right angles to the core,

and then draws ofl the detachable disk tire cover and tube. These operations can be performed in the space of 15 seconds. The sound tire cover and tube are now placed on the core, the detachable disk threaded on to the levers, the latter then snapped down on to the detachable disk, and the coverplate screwed on, whereupon the wheel is again ready for use.

In order to facilitate the threading of the detachable disk on to the pins a the outer ends of the latter may be made conical, and the back portion of the fulcrumed end of the lever, i. e., the portion remote from the heel (i and toe a, may be used to still further facilitate the operation by pressing them backward so as to urge the detachable disk and tire home. i

The said disks and cover-plate may be radially ribbed so as to increase their strength.

Tire covers having plain non-wired edges may, if desired, be employed. In such a case, they are preferably made smaller in diameter than the core so that it will be impossible for the air pressure in the tube toforce the edges of the cover over the inturned edges of the disks 6 and a. An ex ample of a plain-edged tire on the wheel is shown in Fig. 7.

InFig. s the disk b and bed for the tire.

are shown cast as'a single piece, the pins a being screwed into the bed as illustrated. The hub 9' may be formed integrally with the disk I).

In Fig. 9 the bed for the tire is fixed at one side to the disk I) the other side resting on the disk 0.

In all cases, the disks 6 and 0 are well and closelyfitted to the hub j so that they transmit load pressure direct from the tire to the hub.

ll claim:

1. A wheel for carrying a tire comprising a bed on which the tire takes a bearing, ,a tire-supporting flange fixed to one side of said bed, a detachable tire-supporting flange at the other side of said bed, parts connected to said flanges respectively, and cam-levers bearing against that one of said'parts which is connected to the detachable flange for temporarily attaching thedetachable tiresupporting flange to the bed, each of said levers being adapted to move endwise and provided with a cam face on its shorter arm said face being adapted to be acted on to cause such motion and also serving to clamp said flange.

2. A wheel for carrying a tire comprising a solid core on which the tire takes a hearing, a tire-supporting flange fixed to one side of said core, a detachable tire-supporting flange at the other side of said core, disks connected to said flanges respectively, and cam-levers bearing agalnst the disk which is connected to the detachable flange to press the latter toward the fixed flange for temporarily attaching the detachable tire-supporting flange to the core.

3. A wheel 'for carryin a tire comprising a hub, a solid core on W ich the tire takes a bearing, a platefor supporting the tire fixed to one side of said core and means for fixing same to said hub, a detachable plate for supporting the tire at the other side of said core, pins secured to said fixed plate and extending through the core and the detachable plate, and cam levers carried by said pins for securing the detachable plate to the core.

' sald 4;. A wheel for carrying a tire comprising a hub, a solid core on which the tire takes a bearing, a plate for supporting the tire fixed to one side of said core and means for fixing same to said hub, a detachable plate for supporting the tire at the other side of core, pins secured to said fixed plate and extending through the core and the detachable plate, cam levers carried by .said

pins for securing the detachable late to the core, and a cover-plate detachab y mounted on the side of the wheel carrying the detachable tire-supporting plate.

5. A wheel for carrying a pneumatic tire com rising a bed on which the tire takes a bearing andwhich is provided with a recess formed in one side to accommodate the tirevalve; a tire-supportin flange fixed to one side of the bed,-a detac able tire-supporting bed, and cam-levers for temporarily attachlever is mounted and a disk through whichv the slotted end of said pin protrudes, said disk being connected to said detachable flange, the construction being such that when the said lever is swung on a fulcrum and the heel is caused to ride over an abutment the inclined toe and heel force the said flange inwarldesoward the wheel substantially as descrr 7. A tire-carrying wheel comprising a bed on which the tire takes-a bearing, a tire-supporting flange fixed to one side of said bed, a detachable tire-supporting flange at the other side of said bed and cam-levers each having a heel 03. and a toe cl for temporarily attaching the detachable tire-supportin flange to the bed, means for supporting said cam levers and means for receiving the thrust of the said heels.

8. A tire-carrying wheel comprising a bed on which the tire takes a bearing, a tire-supporting flange fixed to one side of said bed, a detachable tire-supporting flange at the other side of said bed, fixed pins projecting from said bed, cam-levers mounted on said pins and arranged so as to fasten said detachable tire-supporting flange in place, each cam: lever having a heel and toe, the arrangement being such that when the cam levers are forced down against said detachable tiresupporting flange the heels of the levers cause the latter to move in an endwise direction, thereby forcing the toes of the levers into sliding enga ement with said detachable tire-supporting ange and thereby holding the latter in p ace substantially as described.

7 9. A tire-carryin wheel comprising a bed on which the tire ta es a bearing, a tire-supporting flange fixed to one slde of said bed, a perforated detachable tire-supporting flange atthe other side of said bed, fixed pins projecting from said bed and passing through the perforations in said detachable tire-supporting flange, cam-levers fulcrumed in pro ecting ends of said pins, said cam levers each having a slot d a heel d and a toe d, the arrangement being such that when said cam-levers are. forced down toward said detachable tire-sup orting flange their heels engage one side 0 the said perforations and cause the cam-levers to move in an endwise direction and thereby force the toes of said cam-levers slidingly. over the other side of said perforations substantially as described;

In witness I have hereunto set my hand in the presence of two witnesses.

WILLIAM H. HAYTER.

Witnesses H. T. P. GEE, Gno. VAN DYNE. 

